via Dannychoo:
Garbage separation is a big thing in Japan. Over here in Singapore, I reckon it will still take 50 more years before the people here are civilized enough to do it right.
The photo below shows a bag of rubbish thrown out without the proper separation done. The pink sticker is left by the disposal fellas which says "This rubbish has not been separated. Separate it properly and try again".

This bag above needs the cans and bottles separated out properly. The labels and caps need to be removed and they should be raised in water too. Once separated, one should keep them at home and throw them out on recycle day.

The below video shows how one should go about separating out their rubbish: